210201212120020 has 48 divisors (see below), whose sum is σ = 482002337779200. Its totient is φ = 76365301230720.

The previous prime is 210201212119957. The next prime is 210201212120083. The reversal of 210201212120020 is 20021212102012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (210201212119957) and next prime (210201212120083).

It is a junction number, because it is equal to n+sod(n) for n = 210201212119976 and 210201212120003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446659140 + ... + 447129499.

It is an arithmetic number, because the mean of its divisors is an integer number (10041715370400).

Almost surely, 2^{210201212120020} is an apocalyptic number.

210201212120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210201212120020 is an abundant number, since it is smaller than the sum of its proper divisors (271801125659180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210201212120020 is a wasteful number, since it uses less digits than its factorization.

210201212120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893789728 (or 893789726 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210201212120020 its reverse (20021212102012), we get a palindrome (230222424222032).

The spelling of 210201212120020 in words is "two hundred ten trillion, two hundred one billion, two hundred twelve million, one hundred twenty thousand, twenty".